Seems it has only been changed back for powder nodes which cost 1 or 2 reward points (rp).
More expensive nodes are still overpriced. See for example the powder notes for 3 and 4 rps in the year of the wererat tree.
They give 30 and 60 powder, so the same as the 1 and 2 nodes despide costing way more. And the 10 reward point chests in that tree which I believe were only priced like this as they contain powder.
And on a side note: 10 reward points for chests is just too much, even with 5 rp its impossible to keep up with all the trees despite playing daily. So far my hope was that we would not get new monthly trees, so I completed only those (if at all) and have all the permanent trees barely touched. Now we get more trees AND nodes and chests get more expensive, that's too much. Even worse as the lack of new contracts makes it harder and harder to get reward points.
(In other words: Please keeps normal nodes at 1 or 2 reward points only, and chests at 5, not more.)